Control all inputs

Adds a setting to control all inputs. This mutes and unmutes all
sources, instead of just the default.

Fixes wbolster#32

extension.js

@@ -91,8 +91,15 @@ class Microphone {
   }
 
   set muted(muted) {
-    if (!this.stream) return;
-    this.stream.change_is_muted(muted);
+    const controllAllInputs = settings.get_boolean("control-all-inputs");
+    if (controllAllInputs) {
+      const sources = this.mixer_control.get_sources();
+      for(let source of sources) {
+        source.change_is_muted(muted);
+      }
+    } else if (this.stream) {
+      this.stream.change_is_muted(muted);
+    }
   }
 
   get level() {

prefs.js

@@ -127,6 +127,26 @@ function buildPrefsWidget() {
     prefsWidget.attach(playingSoundNotSupportedLabel, 0, 5, 1, 1);
   }
 
+  const controlAllInputsLabel = new Gtk.Label({
+    label: "Mute and unmute all microphones",
+    halign: Gtk.Align.START,
+    visible: true,
+  });
+  prefsWidget.attach(controlAllInputsLabel, 0, 6, 1, 1);
+
+  const controlAllInputsSwitch = new Gtk.Switch({
+    active: this.settings.get_boolean("control-all-inputs"),
+    halign: Gtk.Align.END,
+    visible: true,
+  });
+  this.settings.bind(
+    "control-all-inputs",
+    controlAllInputsSwitch,
+    "active",
+    Gio.SettingsBindFlags.DEFAULT
+  );
+  prefsWidget.attach(controlAllInputsSwitch, 1, 6, 1, 1);
+
   if (GTK_VERSION == 3) {
     prefsWidget.show_all();
   }

schemas/org.gnome.shell.extensions.nothing-to-say.gschema.xml

@@ -26,5 +26,10 @@
       <summary>Play sound when muting and unmuting</summary>
       <description>Play sounds when the microphone is muted and unmuted.</description>
     </key>
+    <key name="control-all-inputs" type="b">
+      <default>false</default>
+      <summary>Mute and unmute all microphones</summary>
+      <description>All inputs are muted and unmuted if true. Otherwise only the default input is</description>
+    </key>
   </schema>
 </schemalist>